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AD9789:  14-Bit, 2400 MSPS RF DAC with 4-Channel Signal Processing

Product Details


The AD9789 is a flexible QAM encoder/interpolator/upconverter combined with a high performance, 2400 MSPS, 14-bit RF digital-to-analog converter (DAC). The flexible digital interface can accept up to four channels of complex data. The QAM encoder supports constellation sizes of 16, 32, 64, 128, and 256 with SRRC filter coefficients for all standards.

The on-chip rate converter supports a wide range of baud rates with a fixed DAC clock. The digital upconverter can place the channels from 0 to 0.5 × fDAC. This permits four contiguous channels to be synthesized and placed anywhere from dc to fDAC/2.

The AD9789 includes a serial peripheral interface (SPI) for device configuration and status register readback. The flexible digital interface can be configured for data bus widths of 4, 8, 16, and 32 bits. It can accept real or complex data.

The AD9789 operates from 1.5 V, 1.8 V, and 3.3 V supplies for a total power consumption of 1.6 W. It is supplied in a 164-ball chip scale package ball grid array for lower thermal impedance and reduced package parasitics. No special power sequencing is required. The clock receiver powers up muted to prevent start-up noise.

Product Highlights

  1. Highly integrated and configurable QAM mappers, interpolators, and upconverters for direct synthesis of 1 to 4 DOCSIS or DVB compatible channels in a block.
  2. Low noise and intermodulation distortion (IMD) performance enable high quality synthesis of signals up to 1 GHz.
  3. Flexible data interface supports LVDS for outstanding SFDR or CMOS input data for less demanding applications.
  4. Interface is configurable from 4-bit nibbles to 32-bit words and can run at up to 150 MHz CMOS or 150 MHz LVDS DDR.
  5. Manufactured on a CMOS process, the AD9789 uses a proprietary switching technique that enhances dynamic performance.

Applications

  • Broadband communications systems
  • CMTS/DVB
  • Cellular infrastructure
  • Point-to-point wireless

FEATURES and BENEFITS

  • Chinese data sheet available
  • Power: 1.7 W (IFS = 20 mA; fDAC = 2.4 GHz, LVDS I/F)
  • Excellent dynamic performance:
    DOCSIS 3.0 ACLR: 4 QAM carriers
    -75 dBc @ fOUT = 200 MHz
    -71 dBc @ fOUT = 800 MHz (noise)
    -67 dBc @ fOUT = 800 MHz (harmonics)
    Unequalized MER = 42 db
  • On-chip and bypassable:
    4 QAM encoders with SRRC filters, 16X – 512X
    interpolation, rate converters and modulators
  • Flexible data interface:
    4, 8, 16, or 32 bits wide with parity
  • Direct to RF synthesis support w/ Fs Mix Mode
  • Built-in self-test (BIST) supports
    Input connectivity check
    Internal random data generator

Functional Block Diagram for AD9789

For evaluation of all Analog Devices High Speed DAC components you will need to purchase or loan a Data Pattern Generator. To find out more information please click here.

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD9789 IBIS Model  (ibs) IBIS Models IBS
AD9789 Evaluation Board, DAC-FMC Interposer & Xilinx ML605 Reference Design FPGA HDL HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

Companion Products

Suggested Companion Products


Recommended Clock Source for the AD9789
  • For a clock source with multiple output VCO frequencies, we recommend the AD9518-1 family.
  • For a PLL clock source, we recommend the ADF4150.
  • For a PLL clock source with integrated VCO, we recommend the ADF4350.
  • For a clock and data buffer, we recommend the ADCLK914.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

AD9789 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9789BBC Status: Production 164 ball CSPBGA (12x12x1.22mm) 164 Ind Tray, 189 $68.87 $58.54 N  Material Info Notify Me Purchase
AD9789BBCRL Status: Production 164 ball CSPBGA (12x12x1.22mm) 164 Ind Reel, 1500 - $58.54 N  Material Info Notify Me Purchase
AD9789BBCZ Status: Production 164 ball CSPBGA (12x12x1.22mm) 164 Ind Tray, 189 $62.47 $53.10 E  Material Info Notify Me Purchase Sample
AD9789BBCZRL Status: Production 164 ball CSPBGA (12x12x1.22mm) 164 Ind Reel, 1500 - $53.10 E  Material Info Notify Me Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

AD-DAC-FMC-ADP
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD-DAC-FMC-ADP Status: Production FMC to High-Speed DAC Evaluation Board Adaptor $125.00 Yes -
AD9789 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9789-EBZ Status: Production Evaluation Board $495.00 Yes -
AD9789-MIX-EBZ Status: Production Evaluation Board $495.00 Yes -
AD-DAC-FMC-ADP Status: Production FMC to High-Speed DAC Evalution Board Adaptor $125.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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